Adding physical therapy to your gym’s offerings is a great way to boost your amenities roster. Every year, millions of people recover from an injury, leave their physical therapist, and then head to a gym, only to reinjure themselves. But also consider this: The demand for physical therapists is on the rise as baby boomers—all 75.4 million of them, as of last year—enter their late 60s and maintain a very active lifestyle. While the 65-and-older set might not be your target clientele, they are out there and they are willing to pay for a gym that offers them a very safe one-stop-shop.